What was found
AIRCRAFT WAS GNDED. ON DESCENT, FLIGHT ATTENDANT REPORTS SMOKE & HAZE IN CABIN & BURNING ELEC SMELL. CREW DECLARED EMER, DID SMOKE PROCEDURE & THE ACFT LANDED SAFELY & TAXIED TO THE GATE. THE SMOKE & SMELL DISAPPEARED IN 3 - 4 MINUTES, ONCE ON THE GND. ACCOMPLISHED TASK CARD 26L000210001 FOR TROUBLESHOOTING THE CABIN AIR QUALITY WITH NO FINDINGS BEING NOTED. THE ACFT WAS RETURNED TO SERVICE.